package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.*;
import com.sky.entity.*;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.OrderBusinessException;
import com.sky.exception.ShoppingCartBusinessException;
import com.sky.mapper.*;
import com.sky.result.PageResult;
import com.sky.service.AddressBookService;
import com.sky.service.OrderService;
import com.sky.utils.HttpClientUtil;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.OrderPaymentVO;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;
import com.sky.websocket.WebSocketServer;
import io.swagger.models.auth.In;
import org.aspectj.weaver.ast.Or;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.*;

@Service
public class OrderServiceImpl implements OrderService {

    @Autowired
    private OrderMapper orderMapper;

    @Autowired
    private OrderDetailMapper orderDetailMapper;

    @Autowired
    private AddressBookMapper addressBookMapper;

    @Autowired
    private ShoppingCartMapper shoppingCartMapper;

    @Autowired
    private UserMapper userMapper;

    @Autowired
    private WeChatPayUtil weChatPayUtil;

    @Value("${sky.baidu.ak}")
    private String ak;

    @Value("${sky.baidu.shop}")
    private String shopAddress;

    @Autowired
    private WebSocketServer webSocketServer;

    @Override
    @Transactional
    public OrderSubmitVO submitOrder(OrdersSubmitDTO ordersSubmitDTO) {
        //异常情况
        Long addressBookId = ordersSubmitDTO.getAddressBookId();
        AddressBook addressBook = addressBookMapper.getById(addressBookId);
        if(addressBook==null){
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }
        checkOutOfRange(addressBook.getCityName()+addressBook.getDistrictName()+addressBook.getDetail());
        Long userId = BaseContext.getCurrentId();
        ShoppingCart shoppingCart=new ShoppingCart();
        shoppingCart.setUserId(userId);
        List<ShoppingCart> shoppingCarts = shoppingCartMapper.list(shoppingCart);
        if(shoppingCarts==null || shoppingCarts.size()==0){
            throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }

        Orders orders=new Orders();
        BeanUtils.copyProperties(ordersSubmitDTO,orders);
        orders.setNumber(String.valueOf(System.currentTimeMillis()));
        orders.setStatus(Orders.PENDING_PAYMENT);
        orders.setUserId(userId);
        orders.setOrderTime(LocalDateTime.now());
        orders.setPayStatus(Orders.UN_PAID);
        orders.setPhone(addressBook.getPhone());
        orders.setAddress(addressBook.getDetail());
        orders.setConsignee(addressBook.getConsignee());

        orderMapper.insert(orders);
        List<OrderDetail> orderDetailList=new ArrayList<>();
        for (ShoppingCart cart : shoppingCarts) {
            OrderDetail orderDetail=new OrderDetail();
            BeanUtils.copyProperties(cart,orderDetail);
            orderDetail.setOrderId(orders.getId());
            orderDetailList.add(orderDetail);
        }
        orderDetailMapper.insertBatch(orderDetailList);
        //删除购物车
        shoppingCartMapper.deleteByUserId(userId);
        OrderSubmitVO submitVO = OrderSubmitVO.builder().id(orders.getId())
                .orderTime(orders.getOrderTime())
                .orderAmount(orders.getAmount())
                .orderNumber(orders.getNumber()).build();
        return submitVO;
    }

    /**
     * 订单支付
     *
     * @param ordersPaymentDTO
     * @return
     */
    public OrderPaymentVO payment(OrdersPaymentDTO ordersPaymentDTO) throws Exception {
        Orders ordersDB = orderMapper.getByNumber(ordersPaymentDTO.getOrderNumber());

        //推送消息到管理端页面
        Map<String,Object> jsonMap=new HashMap<>();
        jsonMap.put("type",1);
        jsonMap.put("orderId",ordersPaymentDTO.getOrderNumber());
        jsonMap.put("content","订单号:"+ordersPaymentDTO.getOrderNumber());
        String msg = JSONObject.toJSONString(jsonMap);
        webSocketServer.sendToAllClient(msg);

        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();

        orderMapper.update(orders);
        // 当前登录用户id
//        Long userId = BaseContext.getCurrentId();
//        User user = userMapper.getById(userId);
//
//        //调用微信支付接口，生成预支付交易单
//        JSONObject jsonObject = weChatPayUtil.pay(
//                ordersPaymentDTO.getOrderNumber(), //商户订单号
//                new BigDecimal(0.01), //支付金额，单位 元
//                "苍穹外卖订单", //商品描述
//                user.getOpenid() //微信用户的openid
//        );
//
//        if (jsonObject.getString("code") != null && jsonObject.getString("code").equals("ORDERPAID")) {
//            throw new OrderBusinessException("该订单已支付");
//        }
//
//        OrderPaymentVO vo = jsonObject.toJavaObject(OrderPaymentVO.class);
//        vo.setPackageStr(jsonObject.getString("package"));

        return null;
    }

    /**
     * 支付成功，修改订单状态
     *
     * @param outTradeNo
     */
    public void paySuccess(String outTradeNo) {

        // 根据订单号查询订单
        Orders ordersDB = orderMapper.getByNumber(outTradeNo);

        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();

        orderMapper.update(orders);
    }

    @Override
    public PageResult historyOrders(Integer page, Integer pageSize, Integer status) {
        PageHelper.startPage(page,pageSize);
        Page<OrderVO> list=new Page<>();
        OrdersPageQueryDTO pageQueryDTO=new OrdersPageQueryDTO();
        pageQueryDTO.setUserId(BaseContext.getCurrentId());
        pageQueryDTO.setStatus(status);
        Page<Orders> ordersList= orderMapper.list(pageQueryDTO);
        for (Orders orders1 : ordersList) {
            List<OrderDetail> orderDetailList= orderDetailMapper.selectByOrderId(orders1.getId());
            OrderVO orderVO=new OrderVO();
            BeanUtils.copyProperties(orders1,orderVO);
            orderVO.setOrderDetailList(orderDetailList);
            list.add(orderVO);
        }
        PageResult pageResult=new PageResult(list.getTotal(),list.getResult());

        return pageResult;
    }

    @Override
    public OrderVO selectById(Long id) {
        Orders orders= orderDetailMapper.selectById(id);
        OrderVO orderVO=new OrderVO();
        List<OrderDetail> orderDetailList = orderDetailMapper.selectByOrderId(id);
        BeanUtils.copyProperties(orders,orderVO);
        orderVO.setOrderDetailList(orderDetailList);
        return orderVO;
    }

    @Override
    public void cancelById(Long id) throws Exception {

        Orders ordersDB= orderMapper.getById(id);
        if(ordersDB==null){
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        if(ordersDB.getStatus()>2){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orders=new Orders();
        orders.setId(ordersDB.getId());
        if(ordersDB.getStatus().equals(Orders.TO_BE_CONFIRMED)){
            weChatPayUtil.refund(ordersDB.getNumber(),
                    ordersDB.getNumber(),
                    new BigDecimal(0.01),
                    new BigDecimal(0.01));
            orders.setPayStatus(Orders.REFUND);
        }
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason("用户取消");
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);
    }

    @Override
    @Transactional
    public void oneMore(Long id) {

        List<OrderDetail> orderDetailList = orderDetailMapper.selectByOrderId(id);
        if(orderDetailList!=null && orderDetailList.size()>0){
            for (OrderDetail orderDetail : orderDetailList) {
                ShoppingCart shoppingCart = new ShoppingCart();
                BeanUtils.copyProperties(orderDetail, shoppingCart);
                shoppingCart.setUserId(BaseContext.getCurrentId());
                shoppingCart.setCreateTime(LocalDateTime.now());
                shoppingCartMapper.insert(shoppingCart);
            }
        }

    }

    @Override
    public PageResult list(OrdersPageQueryDTO ordersPageQueryDTO) {
        PageHelper.startPage(ordersPageQueryDTO.getPage(),ordersPageQueryDTO.getPageSize());
        Page<Orders> page = orderMapper.list(ordersPageQueryDTO);
        List<Orders> orders = page.getResult();
        List<OrderVO> orderVOList=new ArrayList<>();
        for (Orders order : orders) {
            OrderVO orderVO=new OrderVO();
            BeanUtils.copyProperties(order,orderVO);
            List<OrderDetail> orderDetailList = orderDetailMapper.selectByOrderId(order.getId());
            String orderDishes="";
            StringJoiner stringJoiner=new StringJoiner(";");
            for (OrderDetail orderDetail : orderDetailList) {
                String str= orderDetail.getName()+"*"+orderDetail.getNumber();
                stringJoiner.add(str);
            }
            orderDishes=stringJoiner.toString();
            orderVO.setOrderDishes(orderDishes);

            orderVOList.add(orderVO);
        }
        PageResult result=new PageResult(orderVOList.size(),orderVOList);
        return result;
    }

    @Override
    public OrderStatisticsVO statistic() {
        Integer toBeConfirmed= orderMapper.countByStatus(Orders.TO_BE_CONFIRMED);
        Integer confirmed = orderMapper.countByStatus(Orders.CONFIRMED);
        Integer deliveryInProgress = orderMapper.countByStatus(Orders.DELIVERY_IN_PROGRESS);
        OrderStatisticsVO orderStatisticsVO=new OrderStatisticsVO(toBeConfirmed,confirmed,deliveryInProgress);
        return orderStatisticsVO;
    }

    @Override
    public void confirm(OrdersConfirmDTO ordersConfirmDTO) {
        Orders orders=new Orders();
        orders.setId(ordersConfirmDTO.getId());
        orders.setStatus(Orders.CONFIRMED);
        orderMapper.update(orders);
    }

    @Override
    public void reject(OrdersRejectionDTO rejectionDTO) {
        Orders orders = orderMapper.getById(rejectionDTO.getId());
        if(orders==null || !orders.getStatus().equals(Orders.TO_BE_CONFIRMED)){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orderDB=new Orders();
        if(orders.getPayStatus().equals(Orders.PAID)){
            //微信退款
            orderDB.setPayStatus(Orders.REFUND);
        }
        orderDB.setStatus(Orders.CANCELLED);
        orderDB.setRejectionReason(rejectionDTO.getRejectionReason());
        orderDB.setId(orders.getId());
        orderDB.setCancelTime(LocalDateTime.now());
        orderMapper.update(orderDB);
    }

    @Override
    public void cancel(OrdersCancelDTO ordersCancelDTO) {
        Orders orders = orderMapper.getById(ordersCancelDTO.getId());
        Orders orderDB=new Orders();
        if(orders.getPayStatus().equals(Orders.PAID)){
            orderDB.setPayStatus(Orders.REFUND);
        }
        orderDB.setStatus(Orders.CANCELLED);
        orderDB.setCancelReason(ordersCancelDTO.getCancelReason());
        orderDB.setId(orders.getId());
        orderDB.setCancelTime(LocalDateTime.now());
        orderMapper.update(orderDB);
    }

    @Override
    public void delivery(Long id) {
        Orders orders = orderMapper.getById(id);
        if(orders!=null && orders.getStatus().equals(Orders.CONFIRMED)){
            Orders orderDB=new Orders();
            orderDB.setId(orders.getId());
            orderDB.setStatus(Orders.DELIVERY_IN_PROGRESS);
            orderMapper.update(orderDB);
        }
    }

    @Override
    public void complete(Long id) {
        Orders orders = orderMapper.getById(id);
        if(orders==null || !orders.getStatus().equals(Orders.DELIVERY_IN_PROGRESS)){
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orderDB=new Orders();
        orderDB.setId(id);
        orderDB.setStatus(Orders.COMPLETED);
        orderDB.setDeliveryTime(LocalDateTime.now());
        orderMapper.update(orderDB);
    }

    @Override
    public void reminder(Long id) {
        Orders orders = orderMapper.getById(id);
        if(orders==null){
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        Map<String,Object> jsonMap=new HashMap<>();
        jsonMap.put("type",2);
        jsonMap.put("orderId",id);
        jsonMap.put("content","订单号:"+orders.getNumber());

        webSocketServer.sendToAllClient(JSONObject.toJSONString(jsonMap));
    }

    /**
     * 检查客户的收货地址是否超出配送范围
     * @param address
     */
    private void checkOutOfRange(String address) {
        Map map = new HashMap();
        map.put("address",shopAddress);
        map.put("output","json");
        map.put("ak",ak);

        //获取店铺的经纬度坐标
        String shopCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3?", map);

        JSONObject jsonObject = JSON.parseObject(shopCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("店铺地址解析失败");
        }

        //数据解析
        JSONObject location = jsonObject.getJSONObject("result").getJSONObject("location");
        String lat = location.getString("lat");
        String lng = location.getString("lng");
        //店铺经纬度坐标
        String shopLngLat = lat + "," + lng;

        map.put("address",address);
        //获取用户收货地址的经纬度坐标
        String userCoordinate = HttpClientUtil.doGet("https://api.map.baidu.com/geocoding/v3", map);

        jsonObject = JSON.parseObject(userCoordinate);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("收货地址解析失败");
        }

        //数据解析
        location = jsonObject.getJSONObject("result").getJSONObject("location");
        lat = location.getString("lat");
        lng = location.getString("lng");
        //用户收货地址经纬度坐标
        String userLngLat = lat + "," + lng;

        map.put("origin",shopLngLat);
        map.put("destination",userLngLat);
        map.put("steps_info","0");

        //路线规划
        String json = HttpClientUtil.doGet("https://api.map.baidu.com/directionlite/v1/driving", map);

        jsonObject = JSON.parseObject(json);
        if(!jsonObject.getString("status").equals("0")){
            throw new OrderBusinessException("配送路线规划失败");
        }

        //数据解析
        JSONObject result = jsonObject.getJSONObject("result");
        JSONArray jsonArray = (JSONArray) result.get("routes");
        Integer distance = (Integer) ((JSONObject) jsonArray.get(0)).get("distance");

        if(distance > 5000){
            //配送距离超过5000米
            throw new OrderBusinessException("超出配送范围");
        }
    }
}
